disodium oxo-$l^{5}-silanebis(olate)

• ChemBase ID: 112801
• Molecular Formular: Na2O3Si
• Molecular Mass: 122.06324
• Monoisotopic Mass: 121.94120895
• SMILES: [Na+].[Na+].[O-][Si](=O)[O-]
• Canonical SMILES: [O-][Si](=O)[O-].[Na+].[Na+]
• InChI: InChI=1S/2Na.O3Si/c;;1-4(2)3/q2*+1;-2
• InChIKey: NTHWMYGWWRZVTN-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: disodium oxo-$l^{5}-silanebis(olate); disodium oxosilanebis(olate)
• IUPAC Traditional name: dipotassium oxo-$l^{5}-silanebis(olate); disodium oxosilanebis(olate)
• Synonyms: Sodium silicate (meta); Sodium metasilicate, anhydrous, tech.; Sodium water glass; Sodium trisilicate; Disodium metasilicate; Disodium silicate; Sodium silicon oxide; Sodium silicate; Sodium metasilicate; SODIUM-m-SILICATE; Liquid glass; Waterglass; Sodium silicate; 无水偏硅酸钠, tech.; 水玻璃钠; 七氧三硅二钠; 硅酸钠; 偏硅酸钠

Database IDs

• CAS Number: 6834-92-0; 1344-09-8
• EC Number: 215-687-4; 229-912-9
• MDL Number: MFCD00003492
• Merck Index: 148642
• PubChem SID: 24858628; 162098255; 24848316
• PubChem CID: 23266
• CHEBI ID: 60720
• Chemspider ID: 21758
• MeSH Name: Sodium+metasilicate
• Wikipedia Title: Sodium_silicate

CALCULATED PROPERTIES

• Acid pKa: 2.69897
• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): -3.533295
• LogD (pH = 7.4): -3.6921096
• Log P: -1.3788
• Molar Refractivity: 4.3287 cm^3
• Polarizability: 4.5841517 Å^3
• Polar Surface Area: 63.19 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: insoluble in alcohol; Soluble in cold water. Hydrolyzes in hot water
• Apperance: -18 Mesh Granular; powder; White to greenish opaque crystals
• Melting Point: 1088°C; 1088°C
• Density: 2.4 g cm^-3; 2.61
• Refractive Index: 1.52
• Std enthalpy of formation: -1561.43 kJ mol^-1
• Std molar entropy: 113.71 J K^-1 mol^-1

Safety Information

• RTECS: VV9275000
• European Hazard Symbols: Corrosive (C); Irritant (Xi)
• UN Number: 3253; UN3253
• German water hazard class: 1; 3
• Hazard Class: 8
• Packing Group: 3; III
• Risk Statements: 34-37; 36/37/38; R:34-37; R34, R37
• Safety Statements: 13-24/25-36/37/39-45; 26; S:13-24/25-36/37/39-45; S1/2, S13, S24/25, S36/37/39, S45
• TSCA Listed: 是
• EU Index: 014-010-00-8
• GHS Pictograms: GHS05; GHS07
• GHS Signal Word: Danger; Warning
• NFPA704:
  

  0

  2

  0
• GHS Hazard statements: H314-H318-H302-H335; H314-H335; H315-H319-H335
• GHS Precautionary statements: P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A; P261-P280-P305 + P351 + P338-P310; P261-P305 + P351 + P338
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges; dust mask type N95 (US), Eyeshields, Faceshields, Gloves; Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 3253 8/PG 3

Product Information

• Purity: ≥18% Na (as Na2O) basis; ≥60% Si (as SiO2) basis
• Grade: purum
• Compostion: Na2O, 18.0-20.0%; SiO2, 44-47%; SiO2, 62.0-65.0%
• Loss on Drying: ≤20% loss on ignition, 800 °C; 15-18% loss on ignition, 800°C
• Linear Formula: Na2O · 3SiO2; Na2SiO3

DETAILS

MP Biomedicals - 05225912

MP Biomedicals Rare Chemical collection

Sigma Aldrich - 307815

Packaging
1 kg in poly bottle
25 g in poly bottle
Application
Employed in preparation of NaZnSiO3OH, a novel chiral framework material which has potential application in ion exchange, adsorption and catalysis.1
Reactant for:
• Hydrothermal preparation of thorium uranium silicate (Th1-xUxSiO4) uranothorite solid solutions
• Fabrication of dense NaA zeolite coatings
• Reactant for preparation of tungsten modified silica as catalyst for liquid phase oxidation of styrene